Results of wedge resection for focal bronchioloalveolar carcinoma showing pure ground- glass attenuation on computed tomography Shun-ichi Watanabe, MD, Toshio Watanabe, MD, Kazunori Arai, MD, Takahiko Kasai, MD, Joji Haratake, MD, Hiroshi Urayama, MD The Annals of Thoracic Surgery Volume 73, Issue 4, Pages 1071-1075 (April 2002) DOI: 10.1016/S0003-4975(01)03623-2
Fig 1 Typical thin-section CT finding of focal BAC showing “pure GGA” appearance, in which vessels can be seen. GGA was defined as a hazy increased attenuation of the lung without obscuration of the underlying vascular marking. (BAC = bronchioloalveolar carcinoma; CT = computed tomography; GGA = ground-glass attenuation.) The Annals of Thoracic Surgery 2002 73, 1071-1075DOI: (10.1016/S0003-4975(01)03623-2)
Fig 2 Management schedule after detection of pure GGA lesion. When a round-shaped GGA without central scar formation was detected on thin-section CT as shown in Figure 1, repeat CT was performed 3 mo later on suspicion of focal BAC. If the tumor size had increased or was unchanged, surgery was planned because of the high probability of BAC. (BAC = bronchioloalveolar carcinoma; CT = computed tomography; GGA = ground-glass attenuation.) The Annals of Thoracic Surgery 2002 73, 1071-1075DOI: (10.1016/S0003-4975(01)03623-2)
Fig 3 (A) Surgical specimen and focal bronchioloalveolar carcinoma lesion (arrow). (B,C) Microscopic examination showing pure bronchioloalveolar growth pattern and no evidence of stromal, vascular, lymphatic, or pleural invasion (hematoxylin and eosin stain; B: ×20, C: ×400 original magnifications). The Annals of Thoracic Surgery 2002 73, 1071-1075DOI: (10.1016/S0003-4975(01)03623-2)